A person briefed on the bargaining says General Motors has offered the United Auto Workers to make new products at two assembly plants it had planned to close.
Talks between the union and GM broke off Sunday and the union says it plans to go on strike just before midnight.
General Motors says it presented what it believes was a strong offer to the roughly 49,000 workers at its U.S. plants, including improved wages and benefits and investments in eight facilities in four states.